I have a JTV69 and I'm looking to buy an Hd500x. In anticipation I've already downloaded the editing software for the Hd500x so I'm familiarising myself with way it works.

I know i can assign a foot switch to switch FX block in and out of the signal chain and that i can assign more than one FX block to a switch. Does anyone know if its possible to assign a foot switch to change a JTV patch in the same manner? I know that each patch within the Hd500x can have Variax patch assigned to it but it would be very helpful if it were possible to toggle between 2 sounds within an Hd500x patch - e.g. An acoustic and an electric... preferably using the same foot switch to switch in/out multiple fx blocks at the same time.

For example if I wanted to play "Pinball Wizard" by The Who, I would need an acoustic sound with quite a lot of compression and a Hi Pass Filter but no 'amp' sound... Then for the chorus it would need and electric sound, different compression, EQ etc., and a 'Hi Watt' or similar...

I know i could use the Mag pickups and an acoustic sound on the variax and go between them with the expression pedal but i want to use the modeled sounds.

As far as i am aware, the variax changes patches using a MIDI protocol down the VDI cable... I cant see that this would be too difficult to implement with software.

I hope i've explained myself - and that i havnt asked a stupid question...